Method of making warp beams



Dec. 31, 1935. HY R, WlNG METHOD oF MAKING WARP BEAMS Original Filed Aug.` 28, 1933 2 Sheets-Sheet 1 Dec. 31, 1935. H. R. WING METHOD OF MAKING WARP BEAMS Original Filed Aug. 2 Sheets-Shea*l 2 F1a E FIE- j Patented Dec. 31, 1935 li/IETHOD OF MAKHNG WAR? BEAMS Harold R. Wing, Worcester, Mass., assigner to Grornpton & Knowles Loom Vlorks, Worcester, li/iass., a corporation of Massachusetts @riginal application August 28, 1933, Serial No. liii. Divided and this application May 24, i934, Serial No. 727,323

' made of a single welded metal tube having the groove extending the full length of the warp cording to my invention, the intermediate pore. tio-ns being removed,

Fig. 2 is a longitudinal section on line 2-2 on a reduced scale,

3 is a detail transverse section showing 5 the relation of the channel and its wings to the collar and notches therein,

Fig. 4 is a perspective View of one end of the beam showing the manner of applying the collar lo Spa before the threads have been cut therein, this 1() The groove receives a rod or damp, which fric figure showing the final form of the collar when tionauy holds the Warp threads in place during threads are not to be used for adjusting purposes, the Winding and subsequently during the me Fig. 5 is a transverse section on line 5-5 of winding incident to Weaving. It is the general Eug- 1 i5 object of this invention to provide an improved Flgs- 6 to mcluslve mdlcate dagmmmaft" i5 methed fer famine the Cylindrical beam mem cally successive steps in the formation of the bers with the grooves. Collin" In carrying my invention into effect I bend a Flg- 1S a' 8W Slmilii t0 Fig- 3 but With the flat plate into Cylindrical form leaving the edges channel omitted and indicating the opposed edges of the plate spaced Slightly, after which a pre of the collar after the cutting operation has been 20 viously formed U-shaped part is secured to the Completed and t adjacent but non-abutting edges of the rolled Figsll and l2 are Smm' t0 Flg- 3 but Showing p1ate These u shaped parte or Channels may modnied forms of collar and channel construcbe of different forms and attached in different im Ways- In order that the subJect matter of this ap- 25 In Can-ying one form of the invention into pllcation may be fully understood, I will describe eject a cutter er the like is used te reduce the abeam'including in its structure the parts formed thickness of the opposed edges to form notches by my lmpmved method- Reffmng particularly for the channel part. The latter has oppositely to Figs' 1 to 5 a' beam barrel 3 1S Shwn hVlg extending Wings which ft into the notches and preferably two sections of Wood 2l and 22 which 3o in order to insure proper welding contact be may be glued together ',hmughout their length tween these wings and the reduced edges I prefand have embedded m tnemf ,Shaft 01 gudgeon erably employ a form of cutter which will leave a 23. Each half has two Semmcular grooves 24 convex surface `at the bottom of the notch having which are so remt@ @at when the palmare as'.

a radius substantially the same as that at the bot- Sembfed as Shown m Flg' 5th@ grooves Wm align tom Gf the Wings- .In this Way a close Contact is 1n paus to dene slots for tie rods 25. The latter established so that welding at frequent intervals project tmough fnctwn heads' 26 and hav@ nuts will bind the wings and reduced edges together Z1 Whlh bind the heads? to the ends of the barrel' Securely. A .longltudmal slot 3! 1n the wooden barrel re- 40 In another form the plate is treated so that ceives a. threesided channel sectlon which is 40 the edges are inturned to define Walls, and the adapted to recelve a Warp lmea'd Clampmg rod 32' channels are set against these Walls and welded deharllebaeelscl g to them. In this way the weld does not lie along i iaccording to the present 1nvention has an inter- -a surface on Whlch yam 1S Wound and the mdge nal diameter substantially the same as or smaller i5 or bunch of metal resulting from the Weld need than the external diameter of the reduced end not be ground O- 33 and is forced over the iatter. The height of With these and other objects 1n vlew which W1l1 the Shoulder 34 may be substantially the sameVV Y appeal' as the deSClptOn Proceeds, my invention as the thickness of the sleeve so that the Wooden .resides in the combination and arrangement of periphery of the barrel is a continuation ofthe so parts hereinafter described and set forth in the cylindrical surface of the collar, claim. Both of the sleeves are substantially alike, the

In the accompanying drawings, wherein three preferred form of the sleeve being made subphases of my invention are set forth, stantially -as indicated in Figs. 1 to 10.

Fig. 1 is an elevation of a Warp beam made ac- As shown -in Fig. 6, in carrying out my im- 55 proved method, I provide a straight piece of sheet metal 49 and bend the same into the substantially U-shaped form indicated in dotted lines in said figure by means of a presser 4| cooperating with a die 42. The U-shaped work may-then be placed in another die 43 having a cavity to receive it and a press 44 forced down to bend the parallel ends of the work around a former F from the dotted to the full line position shown in Fig. '1. This operation purposely leaves the adjacent edges 45 and 46 spaced apart but nearer together than is desired in the finished product.

The work is then held between two jaws 41 and 48 around a brace F2 with the opposed edges located in the path of a cutter 49. The latter has a central cylindrical barrel 59 from which ex-V tend side cutters 5I and 52, respectively, which are so formed as to cut a convex surface. The cutter is shown in raised position in Fig. 8 to illustrate more clearly the proportions of the same with respect to the slot 53 which lies between the opposed edges 45 and 96, but in actual practice the cutter will assume the position shown in Fig. 9. The cutter will move the length cf the collar by an ordinary milling operation and will remove all of the original edges 45 and 46 and in addition will define notches 54, the bottom surfaces of which 55 are convex and preferably concentric With the outer surface of the sleeve.

A channel section 69 as shown in Fig. 3 has wings 6I extending laterally therefrom to fit into the notches 54.' These wings are preferably pressed or stamped to be concentric with the surface 54 so as to lie tightly against them. The outer sides of the vertical walls 52 Aare such as to t snugly between the opposed edges E3 which are left by the cutter. By means of welding indicated at B5 the wings are fastened to the reduced edges S5 to effect a tight union between the channel and the collar.

The width of that part of the channel which extends into the collar, as suggested in the lower central part of Fig. 3, is substantially the same as the width of the slot in the wooden barrel, so that when assembling as indicated in Fig. 4 the slot 651 in the channel is accurately aligned with slot 30. After the collar is driven on to the reduced part of the barrel, screw threads 10 may be cut therein if this form of adjustment is used to receive a threaded hub 1I on movable or false head 12. The alignment of the slots 61 and 30 permits the rod 32 to extend the full distance between the false heads 12.

In the rst modification shown in Fig. 11 the method of bending is altered to provide the collar with opposed edges turned down as at 3| to define surfaces for the reception of a U-shaped channel 82. The channel and collar are secured together at frequent intervals by welding as at 83 and the small longitudinal pockets 84 defined by the rounded part of the collar are closed with a fillet 85 supplied by autogeneous welding, after which screw threads may be cut as in the preferred form.

In the second modication illustrated in Fig. 12 the method of bendingvcollar 9i) is similar to that shown in Fig. 11, providing the collar with inturned edges 9i which are located between the upstanding parallel sides 92 of a U-shaped channel 93. Welding as at 94 unites the two parts. As in the other forms the exterior surface of the collar may be supplied with screw threads.

In both modifications the method of forming the collar may be substantially the same as shown in Figs. 6 and 7 with suitable alterations to provide the inturned edges. In all forms of the invention the threads are cut on the collars after 5 the latter have their channel sections welded t0 them and after being applied to the barrel, hence the threads are concentric with the shafts 23 and also the central wooden part of the barrel. 'Ihe welding of the channels to the collars stiffens the 10 latter so that the thread cutting operation does not deform the collar, therefore the threads are concentric with the bairel axis and will cooperate properly with the false head.

The intermediate channel section 3| may be15 held in place by means of screws 95 and-the false heads may be heldin position by set screws 96 which preferably pass down intol the slot 61 to engage the sides of the slot without injuring the screw threads. The manner of holding the false 20 heads in position need not necessarily be that set forth herein, and the screw threads at the ends of the beam may be either both of the same hand, or of opposite hand, as is common in certain types of beams, f 25 From the foregoing it will be seen that I have provided a simple method by which collars of the warp beams may be conveniently made of two parts which are securely fastened together. In the practice of certain features of this method the 30 U-shaped slo-t forming member is held between opposing edges of the main body of the collars, the two parts having similarly curved surfaces which are both concentric with the axis of the beam s0 as to establish firm contact at the points of Weld- 35 ing. It will be seen, however, that I am not limited to this particular method of forming the collars inasmuch as the form shown either in Fig. l1 or l2 can be used. When the channel is applied as shown in Figs. ll and l2, the rib of metal remain- 40 ing after the welding is not on the finished surface of the collar on which the warp is wound, andy guiding of this surface is therefore not necessary. In all forms, the welding of the channel prior to thread cutting strengthens the collar and 45 prevents distortion of the latter during the thread cutting operation.

Having thus described my invention it will be seen that changes and modifications may be made therein by those skilled in the art without depart- 50 ing from the spirit and scope of the invention and I do not wish to be limited to the details herein disclosed, but what I claim is:

The method of forming a warp beam element consisting in the following steps: bending a flat 55;.;

piece of sheet metal to a substantially cylindrical form with edges spaced'to dene an open slot extending longitudinally of the cylindrical form, removing a portion of the edges to define a true parallel sided slot and also removing parts of the 60, i

cylinder adjacent the slot to deiine notches lthe bottoms of which are substantially concentric with the axis of the cylinder, bridging the slot with a. member having oppositely extending wings which are formed to contact with the bottoms of and lie 6521.

and outer surfaces of the wings, the bridging 'IQ-1 member supporting the cylinder during the thread cutting operation.

HAROLD R. WING. 

